Sheet-delivery mechanism.



' -To-GZ. whomit may conc-ern:

` Be it. known thatv I, N1erioLAsMnYEns,a citia'en of the United States, 'residing at v:'Biiffalo, in the county of Erie and .State ofi NewYork, have invented new and useful- Improvements in!Sheet-Delivery'Mechanism7 ofwhich the following is aspecificat-ionl This invention'l relatesto a sheet delivery -lmechanismfor printing' presses and more sTATns PATENT OFFICE.

menores msnm, or Barrera. New Your; Assreiron To Purim n nannies, or

BUFFALO, New Yoan.

'snnnzr-nmivnnv meenemen.

partieiilarlytoja device of this character .which is speciallyk suited: for small presses vbywhich@cireular letters are printed.

tively 1 0-W. cost --videja-delivery mechanism for this purpose.

l v vliieh' isla simple Vin c oqnstruction, reliable in.

operationand ,Coli ,produced at comparae In' they accompanying drawings, `cinsisting l of 3 s'heets,fFigure 1, is a fragmentary eleration, partly in sectionpof a lprinting press Y equippedfwitli rn improved sheet delivery ai perspectiveviewof the delivery gripper. Fig. 41s' across" section in line Alf-4, Eig; 3; lFigfis a fragmentary top lan. iiew' `of the' 'sheet delivery mechanism andthegadjcent part ofthe printing press.

La horizontal lsection in line 6-6,

letters'i'vof` reference "indicate cori'views'. A

A'lheprinting press shown in the drawings for exemplifyin -the'application of my 1mresponding parts throughout several proved: sheet de ivery mechanism wcomprises a main frame A, aliorizontally and long1' tudinally reciprocating bed B guided on Vthe frame and adapted Jto support a chase.V of printing type or plates C on its upper side,

an i king ribbon D extending over said printing surface for'producingan impression of suitable means, and a rollen e which Iis mounted transversely and horizontally on the bed at the front or deliveryend thereof and" upon which the 'surplus of the inking ribbonl at one end is wound. Said roller isA arranged a suiiicient distance below thetop or' face of the type so as to.A provide a c1ear. space above the roller in which the 'gripper the same on the sheet E which is pressed downwardly on the same by any.

l peicationoi Letters atenft.. Patented Fen-'13, 1914. Application led'une 19', 1910. Serial No. 566,248. i I

l ofthe sheet delivery mechanism isfiee to operate. v My"improved sheet delivery .mechanism which is associated with this printing press is ',constructed as follows: F represents a. guideway having a horizontal lower part f which 4is arranged lengthwise and centrally below. the printing bed and ja.. forwardly and 'upwardly curved ,front part f which.

hasits upper end arranged centrally infront of-where the front end of' the type bed terminates its' forward s trokewhile Vthe lower end. connects with l the front end of the straight lower part- This 'guideway .is

preferably constructe in the form of a flat#l :tened tube` andl provided in the outer or convex side of its curved front part with a longitudinal slot gand on the upper side of its-.lower horizontal part with a longitudinal slot g1.I The upper'and lower parts 'of the guideway are connectedby upper and lower brackets H, H1 with the adjacent parts of the press frame, thereby forming a support for the "guideway Sliding in the guideway is a flexible shifting band I which is preferably of laminated -form and constructedv of a plurality of superposed layers or .strips o steel or similar material which hasy the necessary flexibility to adapt itself't'o vthe curved part ofthe guidewa-y upon bein moved lengthwise therein and which is su ciently rigid lengthwise, so Athat power may be transmitted by.- tlie same' for actuating parts to be presently described A longitudinally reciprocating movement maybe imparted tothe band by any suitable means-but preferably by means of a horizontal longitudinal link/z' connected at its front end with the lower or l rear end of the shift-ing band by a bolte'1 and connected at its lower end with a L hanger J depending from'gthe type bed.

otheupper or front end of the shifting the' printed sheets are successively, carried off Afrom the type bed and delivered upon a receiving table K 'arranged in front and below the front endl of ,the type bed. This gripper i's constructed 'as follows :-L,` M

represent the:` relativelyjmovable and fixed jaws of thev gripper which are adapted to engage with o 'positesides. of the front edge ofthe printe sheet. The xed )uw is ar- Vband is secured a delivery' gripper. whereby "onthe shanlvby a' transverse pin o1 'which is'constantly turned'in the direction for "holding its vjaw"yieldingly in engagement with the'iixe'd `jaw by means'of a spring p1,

y surro'undi'ngv the. pivot pin o1 and, connected I' to he able toenterv the narrow space betweenl shank," respectively.

The fixed jaw is comparativelythin so as .at its opposite'ends with the jaw lever and thegtop 'of-the'type chase and the front edge 2Q "of'thelatterf'and the movable jaw is proof` the sheet for engaging with the underside vided with a-'facingg of rubber or similar material' "so as enable the same to obtain a "i'rm hold on thetop of the sheet. The rear parts-of the shanlrand' gripper lever are de- .fiectedoutwardly so as to clear the guideway andlinkrollerbutthe jaws thereof are bent i inuf'ardly,` so .that when the same are at lthe "upper part'ot' the guideway they are able to reach downwardly and engage with opposite a sides` of the front edge of the sheet, as shown fin'Fig.

The gripper moved alternatelyto the upper andiowerends of the curved part of the Lguider/'ay bythe reciprocating band and the actuating'mechanism thereof. Tn lts uppermost position the gripper faces rearwardly andis'caused. to engage with the front edge of the printed'sheet while in its lowermost positionthe gripper face-s for "wfarc'lly"andisfcaused to release the sheet,v ".wlrerebythe latter upon beingwithdrawn "from thety'pe bed `and moved with the gripper from its upper yto its lower position is reversed upside-down and also fore and' att and 'then 'deposited on the receiving table.

The preferred means for causing the grip per tograsp and release the sheets is constru'cted'asfollows: R represents a tripping or shifting lmember havingA a main p art r extending across the shank and lever of both gripper ]aws at corresponding edges therefof and providedat .its outer end with a foot "orishoulder adapted to bear against the outer sideofjfthe rear arm of the gripper 'lever andH provided at its i-nner end with a heelershould'er #which projects toward the underside offtheishank of the` fixed gripper jaw, a spring'fu connecting the foot with the gripper leven-an upper cam w secured to the upper end-'of' the curved part of the 'uideway in the. path of the heel t and a lower' cam w! "secured to the lower end ofy the curved part ofthe guideway in the path of said heei.

` side of theme72 As the gripper approaches near tothe front edge of the sheet on the 'type ofthe printing bed its heelt engages with the underside of the upper caln 'w thereby causing the gripper lever to be turned in the direction for moving the movable jaw away `from the fixed jaw, as shown by dotted lines in Fig. 1. While in this open position the gripper in continuing its backward movement passes its lower. fixed jaw underneath the printed sheet on the type and its u per movable jaw over the printed sheet. uring the last. part of the rearward movement .of the gripper its heel t slips oit' the highest part of the upper cam, thereby. permitting the spring p1 to close the jaws of the grip.-

per on? the sheet and obtain a 'firm hold on the same. After .the sheet has been thus grasped by the gripper the latter is moved downwardly into its lowered and reversed aosition, whereby the sheet .is vwithdrawn rom the type 'and reversed. During the initial part of the downward movement ofl the gripper its heel t rides over the upper side of the upperpcam and 'is deflected outwardly without producing any effect, this,

being permitted by the spring u'which connects the foot .s with the gripper lever. During the last part of thedownward movement of the gripper its heel t engages with the upper side of the lower cam w1, as 'shown in 'full lines in Fig. 2, thereby opening the gripper and releasing the sheet which 'is now tree to drop m a reversed posit-ion on the sheet receiving table. As the gripper-l moves upwardly away from the lower cam the movable jaw is again permit-ted to close against the fixed jaw, as shown by dotted lines in Fig. 2, loutduring vthe last part of .its upward movement the gripper 1s again operated upon by the upper cam for causing the gripper to first open and then close 'for gripping the next printed sheetl Accidental displacementv of .the gripper opening the trip finger is prevented by means of a guide eye r1 arranged on the rear arm of the gripper lever and receiving the main part 1'. of said finger, as shown in Figs. 3 and 5.

While the gripper is moving lback and forth from its upper to its lower position the head N moves through the outer slot g ot the curved part of the guideway and the connection 2'1' between the link i and the band F moves through the slot g1 in the upper way. p

During the operation of the machine the gripper always overhangs the front end of the type chase and ribbon roller in the foremost position of the bed. Ina'smuch as the' the lower straight part of the guide-- per out of the way to permit of the removal of the type and ribbon and the replacement of the same. For this purpose the Shank of the fixed gripper jaw' is pivoted von the head m and band F by the rivet n, so that the gripper as a whole can be turned laterally semental slot y in the O'ri per shank and a.. C 1 C nut s on the screw m'bearing against the upper side of said shank.

I claim as my invention:

1. A. sheet delivery mechanism comprising a guideway having a vertically curved part, a flexible sheet metal shifting member reciprocating lengthwise in the'guideway, and a gripper mounted on said shifting member and adapted to be reversed duringI its movement with said shifting member for Ireversing the sheet while the gripper holds the same.

2. A sheet delivery mechanism compris .ing a'guidewav having a .vertically 'curved part, a flexible sheet nietal sh'iftingmem her slidable lengthwise in the guideway,a gripper mounted on ,the front end of'said shift-ing membe and adapted to be reversed during its movement with said shiftingV member for reversing the sheet while held hy the gripper, and means for actuating said shifting member comprising a reciprocating element, and a link connecting said reciprocating Ielement with the rear end of the shifting member.

3. A sheet deliver)Y mechanism compris' ing a tubular guideway having a horizontal rear part which is provided with a longitudinal slot and a curved front part, Awhich is connected at its rear end with the front end of the rearpart and is provided with a'- longitudinal slot, a Vflexible shiftingniember slidable lengthwise in said guide vauf, a gilipper. a.' connection between said gripper and shifting member which; moves lengthwise in the slot of the frontp'art of the guide, a reciprocating element, and a 'connection between said reciprocating yelement and the shifting member movable lengthwise relatively to the slotted rear part ofthe guideway.

4. A sheet deliver mechanism. comprising a shifting mem er, a', gripper having 'relatively fixed and movable jaws', a shank carryin the fixed jaw and connected with said shi ting member, a lever .p ivoted to said vshank and carrying the movable jaw on its. Y

frontarm, a spring for holding said jaws yieldingly in a closed position, a trip finger having an outer shoulder bearing against t-he outerside of the lever and an inner shoulder, a spring connecting the upper end of said finger with saidlever, and a cam adapted to be engaged by/the inner shoulder of the trip finger.

ing a shifting member, a gripper having relatively fixed and movable'jaws, a shank carrying the fixed jaw and connected with said 'shifting member, a vlever pivoted to said shank and carrying the movable jaw on its front larm and having a guide eye, a spring for holding said jaws yieldingly in a 'closed position, a trip finger in said guide eye and having an outer shoulder bearing against the outer side of. the lever and an .inner shoulder, va spring connecting the upper end of said Finger with said lever, and a cam adapted to be' engaged by the inner shoulder of the trip finger. p

6. A- sheet delivery mechanism comprising a movable support, a gripper having relatively fixed and movable jaws, a shank vcarrying said fixed jaw and pivoted on said support to swing transversely and provided with' a. segmental slot, a lever pivoted on the' shank and carrying the movable jaw, and4 means for clamping said .shank against turningon :the support consisting of abolt, arranged on the support. and passing through -said slot, and a screw nut arranged von said bolt andbearing again said shank.

litnes's myl hand this 8th day of June, 1910.

NICHOLAS 'HEYERS ldlitnesses t E. M. GRAMMI, -ANNA, Hinois.

5. A sheet' delivery mechanism compris- 

